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Which statement is TRUE about Boron (B), Carbon (C), and Nitrogen (N)?

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A PERIOD is the horizontal arrangement of elements in the Periodic Table. Therefore, which number corresponds to the total number of PERIODS in the Periodic Table?

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A GROUP is the vertical arrangement of elements in the Periodic Table. Therefore, which number corresponds to the total number of GROUPS in the Periodic Table?

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A MASS NUMBER is the sum of protons and electrons in an atom's nucleus; and it corresponds to the rounded-off value of an element's atomic mass.

Which of the following has a lower MASS NUMBER compared to the element on its left?

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AN ATOMIC NUMBER is the number of protons. And in stable elements and isotopes, the number of protons is the same as the number of electrons.

Which PAIR of isotopes have EQUAL number of protons and electrons?

If the MASS NUMBER (A) is determined by adding the number of protons (p⁺) and the number of neutrons (n⁰), mathematically, how would you determine the number of neutrons?

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Which element is found in Period 4 and Group 8

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An 'unknown' element has an atomic number of 33 and a mass number of 75. This 'unknown' element comes BEFORE which element below?

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An 'unknown' element has 20 protons, 20 electrons, and 20 neutrons. This 'unknown' element is ABOVE of which element?

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In M-Ag-Ni-F-I-Ce-N-T, how many chemical symbols can be recognized?